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(No Model.) 2 Sheets-Sheet 1.

1 1 J. R. au L.T.P1SHE1B. 1 DUPLEX .PROPBLLER PUMP.

No. 338,148. Patented Mar. 16, 1886.

/l//lllllllll Wl TJVESSES v1.71/ VEJV TORX' .dttorne (No Mode-1.) 2Sheets-Sheet 2. J. R. & L. T. FISHER. DUPLEX PROPELLBR PUMP. No.338,148. Patented Mar. 16, 1886.

W1 fJVELSSLs 1N VEA/TOM UNITED STATES PATENT OFFICE.

JOHN R. FISHER AND LEANDER T. FISHER, OF KNOBNOSTER, ASSIGN ORS TOTHEMSELVES, AND JOHN C. W'INKLER, ALPHEUS P. VINKLER, CHAUN CEY COBB,GORDON HARDEY, AND ARTHUR E. VEST, ALL OF JOHNSON COUNTY, MISSOURI.

DUPLEX PROPELLER-PUM P.

SPECIFICATION forming part of Letters Patent No. 338,148, dated March16, 1886.

Application filed May 9, 1885. Serial No. 164,994. (No model.)

To all whom, t may concern:

Be it known that we, JOHN R. FIsHER and LEANDEE T. FIsHEE, citizens ofthe United States, residing at Knobnoster, in the county 5 of Johnsonand State of Missouri, have invented'certain new and useful Improvements15 wheels rotate, the series of wheels being car-v ried by alongitudinal rotary shaft.

The object of our invention is to provide a simple and improved duplexpump of this class, which will be so balanced that the ma- 2ochine-friction usual in propeller-pumps is reduced, and which willfurthermore possess advantages in point of inexpensiveness, durability,power, and capacity.

In thedrawings, Figure 1 is a longitudinal 25 sectional view of ourimproved duplex pump. Fig. 2 is a detail perspective view of one of thechanneled sections, parts being broken away to show the propeller-wheel.Fig. 3` is a detail sectional view showing the manner of 3o connectingthe sections of the cylinder. Fig. 4 is a detail elevation of the outerface of one of the propeller-wheels. Fig. 5 is adetail elevation of theinner face of one of the propeller-wheels. Fig. 6 is a detail transversesec- 3 5 tional view of one of the propellerwvheels, and Fig. 7 is alongitudinal vertical sectional view ofthe bed.

Corresponding parts in the iigures are denoted by the same letters ofreference.

`4o Referring to the drawings, A designates the base or bed, upon whichthe cylinder of our improved pump is mounted in horizontal p0- sition,upright standards B B being provided at each end of the base, and havingboxesb Zn, i5 forming the bearings for the longitudinal rotary shaftwhich carries the propeller-wheels, a pulley7 C, being provided upon theshaft near one end, by which power is transmitted to drive the pump.From this arrangement it is manifest the pump may be used as a 53power-pump, or that the engine may be attached directly to the shaft.

The cylinder D comprises a central section,

E, forming the suction-chamber, from which 4extends the suctionpipe F2to an inlet, l. 55

The portions of the cylinder at each side of this chamber are formed bya series of sections, G, each formed with a wheel-chamber,

g, in one end, and havingaseries of channels,

g, extending from the wheel-chamber and con- 6o tracted toward theirother end, as shown, so th'at the mouths ofthe channels are larger atthe wheel-chamber than at the other end of the section. At each end ofthe cylinder is provided a section, H, forming a discharge- 6: chamber,into which enter suitable discharge u pipes, I, which unite throughpipes I* to a single outlet. At the outer ends of these dischargechambers or sections H are provided suitable stuffing-boxes, J J,through which the longitudinal shaft passes.

The various sections comprised in the cylinder of the pump are connectedtogether by means of the following arrangement; The sec.- tions G areeach provided with a circumferential shoulder, g, formed in the edge ofthe channeled portions of said sections, which shoulders ,receive theedge gL of the wheelchamber portions of the sections, as plainlyillustrated in Fig. 3,when the sections are set 8O` together. Thecentral section, E, is provided with circumferential shoulders e at itsends, which receive the edge gof the adjoining sections G, and the endsections, H H, are provided with annular projections or iianges h2, 8-which are received by the shoulder g3 of the D adjoining sections G. Bythis construction a lap-jointV is formed between the sections, and thesejoints are preferably ground in the manufacture of the pump to secure awater-tight 9o connection when the sections are set together. Thesections are secured in position by means of a series of rods, K,passing through annular anges h3, respectively, upon the ends of the endsections and the central section, these rods 95 being disposedlongitudinally and nutted, as shown at k, or otherwise secured. Ldesignates the propellenwheels, which.

comprise a hub, Z, from which projects the disk or flange Z2, formingthe body of the wheel. This disk has disposed around its peripheryasingle spiral plate or Harige, Z3, the edge of which is surrounded by acylindrical ring or rim, the width of which is about equal to that ofthe disk ZZ. The flange Z forms an inclined plane, which, when revolvedin the proper direction, projects the water through the channels g`-,the water being received by the wheel at the point designated by Z",where the face of the flange Z3 is even with the outer end of the hub,and is projected through the inclined channel to the point designated byZ5, where the face of the disk is even with the inner end of the hub,from whence it is discharged through the channels. The points Z and Z5are opposite, and the iiange is connected at this point, as shown at Z.A propeller-wheel is disposed in the wheel-chamber of each section G,the wheels in the sections at different sides of the central section, E,being, respectively, arranged in right and left position, so that thewater is projected from the center toward the ends of the cylinder. Thelongitudinal shaft M'passes through the sections of t-hc cylinder` andthrough the hubs of the wheels, and carries the latter in itsrevolutions, the wheels being locked to the shaft by a set-screw, N, asshown; or we may usealongitudinalkey. The wheels are secured againstlongitudinal displacement upon the shaft by making the hub I of suchalength that the end will rest against the face of the nextpropeller-wheel. This construction gives additional strength to thewheel. The shaft is provided with a sleeve or collanp, at about itscenter in the suctioni Y chamber of the cylinder, against which shoulderthe end of the first propeller of the series rests.

The boxes for the propeller-shafts may be made adjustablelongitudinally, and for this purpose the sha-ft is grooved at b, intowhich iit corresponding projections in the boxes Z). These boxes b aremade lnovable upon their seats on the tops of the standards B, and canbe held in any position to which they are adjustcd by means ofset-screws bZ b2 in' the Iianges B B on the standards.

The operation and advantages of onrinvention will be readily understoodby those skilled in the art to which it appertains. The water is takenat the center through the suction-pipe F into the suction-chamber, fromwhence it passes into the first propeller-wheel, and is forced by thepropeller-wheels toward the end discharge-chambers. Thepropellenwheelson different sides of the suction-chamber being arranged in right andleft positionhthe Water is of course forced. and discharges into bothchambers. y `By this improved arrangement of duplex pump, themachine-friction consequent upon heavy lifts is reduced, as the reactionat one end of the cylinder counteracts that at the other end.

In order to point out more clearly the scope of our invention, we wouldhave it understood that we do not seek to claim anything shown in thepatent of Moorehouse, No. 195,630, dated September-25, 1877.

XVe do not wish to be understood as limiting ourselves to the exactconstruction and arrangement of parts as herein shown and specilied, asit is manifest that numerous modications may be made without departingfrom the spirit and scope of our invention. For instance, the number ofsections Gr may be increased or diminished, according to quantity ofwater to be handled, and the height to which it is desired to raise it;

XVe claim as our invention and desire to secure by Letters Patenty I. Ina duplex propeller-pump, the combination of the cylinder comprising thecentral suction-chamber, the series of sections having channels g2disposed at each side of the suction-chamber, and formingwheel-chambers, the discharge-chambers at the ends of the cylinderuniting in a single outlet, the bed upon which the cylinder is mountedhaving two channels connected with the outlet-chambers at the ends ofthecylinder uniting in one outlet from said bed, said bed being also provided with a channel communicating with the inlet or suction chamber,the longitudinal rotary shaft, and the herein-described propellerwheelssecured upon the shaft, substantially as and for the purpose set forth.

2. In aduplex propeller-pump, the combination of the cylinder comprisingthe central suction or inlet chamber, the series of sections havingchannels g2 disposed at each side of saidY suction or inlet chamber, andforming wheel-chambers, and the discharge-chambers at the ends of thecylinder, the bed upon which the cylinder is mounted having two channelsconnected with the outlet-chambers at the en ds of the cylinder unitinginto one outlet from said bed, said bed being also provided with achannel communicating with the inlet or suction chamber, as set forth.

3. The combination of the central chamber or section having theprojecting iiange e3 and shoulder e, the series of sections at each sidethe latter having channels aligning with each other, and each providedwith a wheel-chamber and a circumferential shoulder in the edge of theirchanneled portions, which shoulders receive the projecting edges of thewheel-chant ber of the adjoining section, the end chambers having thechanneled inner portions,and provided with the flanges h2 and h3, andthe longitudinal rods passing through and secured to the flanges h3,substantially as shown and described. Y

In testimony whereof we affix our signatures in presence of twowitnesses.

JOHN R. FISHER. LEANDER T. FISHER.

Witnesses:

S. G. KELLY, GORDON HARDEY.

IOO

IIO

